
```ts
$ py -m pip install pylint
```

```ts
py -m pip install mypy
```

```
py -m pylint TT.py
```


```python
def my_func(x: int) -> float1:
    return x ** 0.5


if __name__ == '__main__':
    print(my_func(5))
```

```bs
mypy test.py
```

